View clinical trials related to Prostate Cancer.
Filter by:This study is being done to find out if transperineal ultrasound (TPUS) can help define the prostate gland for radiation treatment planning and improve upon current methods of image guidance for the treatment of prostate cancer. For the patient, TPUS involves the placement of an ultrasound probe on the perineum, the skin between the scrotum and anus, while they are lying on their back in the position they will receive their treatment. Image-guidance is required for the treatment of prostate cancer because the prostate shifts position depending on how full the bladder and rectum are. Image-guided radiation therapy has been done at Fletcher Allen Health Care for approximately three years. Most commonly, transabdominal ultrasound images are obtained every day and compared to an ultrasound that was done on the day of treatment planning. Adjustments in radiation field position can be done on a daily basis by comparing these images. Transperineal ultrasound has never been used for image-guidance. The investigators completed an earlier study and have developed a TPUS device and process that allow us to get clear ultrasound pictures of the prostate gland. The TPUS has three potential advantages over the transabdominal method the investigators currently use: 1. Transabdominal ultrasound can be a challenge for some men. A full bladder helps us get clearer images, however it is difficult for some men with prostate cancer to comfortably keep a full bladder. It is also particularly difficult to get good images in larger men who have long distances from the skin surface to the prostate gland. TPUS is not dependent on a man having a full bladder and should be less dependent on the size of the man. 2. TPUS images and the planning CT images can be acquired simultaneously. This is not possible with the abdominal probe because it gets in the way of the CT machine. Simultaneous imaging eliminates the possibility of the prostate gland shifting positions during the time between imaging studies. 3. TPUS can be in place and acquire images during patient treatment (the abdominal probe gets in the way of the treatment machine) and may in the future allow us to watch the prostate gland during treatment. If the investigators discover that they can accurately view the prostate gland in real time, TPUS may ultimately allow us to treat even smaller radiation fields and possibly decrease the risk of radiation complications. Patients in this study will be treated for their prostate cancer with the standard image guidance techniques used at Fletcher Allen Health Care: transabdominal ultrasound and/or X-ray imaging of gold marker seeds that have been placed the prostate gland. In addition to standard care, all men in this study will have TPUS and CT scans done a total of four times over 12 weeks to compare these methods of prostate localization over the course of radiation treatments. Some men may choose to take part in an additional study that will also include MRI of the pelvis to compare with the TPUS and CT. Because the prostate gland can be more clearly defined on MRI, some institutions (not Fletcher Allen) routinely have patients with prostate cancer get MRI scans for treatment planning. This has not been proven to improve the care of men with prostate cancer and it is possible that TPUS will provide similarly clear images. The potential advantages to TPUS imaging for prostate localization over MRI include the fact that it is done at the same time as the CT for treatment planning (so eliminates the possibility of movement of the prostate gland from the time of the MRI to the time of the CT) and can be done at a much lower cost.
The purpose of this study is to define the safety and accuracy of 89Zr-DFO-huJ591 PET scans. By improving our ability to find cancer cells, the investigators hope to be able to improve treatment for patients in the future. The study doctors want to determine whether a new kind of scan, called a 89Zr-DFO-huJ591 PET scan, can specifically see prostate cancer that has spread to other parts of the body, especially the bones. The study doctors will also look at how the 89Zr-DFO-huJ591 reacts with the body and how long it stays in the body. The investigators will also ask the patient to have a biopsy performed. The study doctors will compare the findings the investigators see on the scans with findings on the optional tissue biopsy. Finally, the investigators will compare the pictures from a 89Zr-DFO-huJ591 PET scan with those of a standard PET scan (called FDG PET) and standard CT scans or magnetic resonance (MRI) scans or bone scans, depending on which standard scans the doctor has ordered. PET scanning uses a small amount of radiation attached to a molecule that is taken up by the cancer. In this trial, the patient will undergo two types of PET scans. One uses FDG. FDG is a standard tracer for PET scans. The patient will also undergo another type of PET scan that is experimental. This experimental PET uses a radioactive protein called J591. The radiation source is a type of metal called zirconium-89 (89Zr). The whole tracer, J591 plus the 89Zr, is abbreviated as 89Zr-DFO-huJ591. This tracer is what is being studied. The tracer used in a scan should find where the cancer is in the body.
Degarelix is an approved drug that is used to treat prostate cancer by lowering testosterone levels in the body. Degarelix is commonly given with radiation for prostate cancer, but less frequently with surgery since there has been no proven benefit with this approach. The investigators do not expect the patient to benefit directly from treatment with degarelix since their prostate will be removed shortly after the drug is given. Instead, the investigators hope to learn about how degarelix and other treatment that lowers your testosterone effects prostate cancer cells and use this information to develop better treatments in the future.
Evaluate the safety of the SpaceOAR System when the hydrogel is injected between the rectum and prostate in men undergoing radiation therapy (IG-IMRT)
Magnetic resonance imaging (MRI) is a diagnostic study that makes pictures of organs of the body using magnetic field and radio frequency pulses that can not be felt. The purpose of this study is to determine if a new MR imaging method can help tumor evaluation in head and neck cancer or prostate cancer. The extra images will be obtained using Diffusion-weighted Magnetic Resonance Imaging which provides image contrast through detection of small restrictions in the movement of water molecules. This study may help us provide additional information about the tumor along with the picture of the organ.
RATIONALE: Memantine hydrochloride may help people stop smoking by decreasing the symptoms of nicotine withdrawal. PURPOSE: This randomized, pilot phase II trial studies how effective memantine hydrochloride works compared to placebo in helping cancer survivors stop smoking.
The purpose of this study is to assess the change in quality of life over a 6 month period between gabapentin and venlafaxine in men with prostate cancer treated for hot flashes related to androgen deprivation therapy.
The aim of this study is to test whether adding chemotherapy/cabazitaxel and hormonal/androgen deprivation therapy before surgical removal of your prostate would improve the outcome of salvage surgery for locally recurrent prostate cancer after the initial primary radiation therapy.
This is an open-label randomized phase II study. Patients are randomized so as to achieve uniform patient cohorts treated on each regimen. Twenty-seven patients will be required per treatment arm, and a total of 54 prostate cancer patients will be required to complete this study. The study will assess for clinical activity by Prostate Specific Antigen (PSA) response, of both single agent ipilimumab and the combination of GM-CSF and ipilimumab in chemotherapy-naïve patients with metastatic castrate resistant prostate cancer.
Effect of Radical Prostatectomy Combined with Neoadjuvant and Adjuvant Chemotherapy in Patients with High Risk Prostate Cancer. The purpose of this study is to evaluate whether neoajuvant and adjuvant docetaxel and prednisone are effective in the treatment of high risk localized prostate cancer.